[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2022-04-09 Thread Launchpad Bug Tracker
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
   Status: Incomplete => Expired

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2022-02-08 Thread Peter Nicolai Mathias Hansteen
Now running with

Linux 5.13.0-28-generic #31-Ubuntu SMP Thu Jan 13 17:41:06 UTC 2022
x86_64 x86_64 x86_64 GNU/Linux

plugging in a second external monitor (hdmi) either via docking station
or directly into the system itself when a usb-c monitor is attached, the
hdmi one is not recognized.

dmesg output attached.

** Attachment added: "dmesg date 2022-02-08"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942427/+attachment/5559742/+files/dmesg_20220208.txt

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2022-01-06 Thread Peter Nicolai Mathias Hansteen
Checking again today with

Linux 5.13.0-23-generic #23-Ubuntu SMP Fri Nov 26 11:41:15 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux

plugging both external monitors into hdmi ports on the docking station
has the system see all monitors, however clicking Apply in the Displays
settings only produces no display on the external monitors and greyed-
out display on the internal one.

In addition, the mouse pointer freezes, but I can Alt-Tab between
windows.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-11-12 Thread Peter Nicolai Mathias Hansteen
Update: after upgrading to 21.10 (Linux 5.13.0-21-generic #21-Ubuntu SMP
Tue Oct 19 08:59:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux) the problem
persists with a twist:

The settings applet now sees all monitors, but trying to configure a
setup with all three is not really feasible since selecting a setup
leads to both external monitors going blank and the primary screen
dimming, with no visible dialog for confirming that the new
configuration is to be applied permanently (possibly displayed on one of
the two blanked-out monitors).

I hope this bug will be addressed shortly.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-10-18 Thread Peter Nicolai Mathias Hansteen
The last working kernel version was indeed the kind of information the
developers were looking for. Excellent that you were able to supply that
bit of information.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-10-17 Thread Peter Nicolai Mathias Hansteen
The last working kernel version was indeed the kind of information the
developers were looking for. Excellent that you were able to supply that
bit of information.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-10-17 Thread Theunis Cilliers
With relation to my previous comment here ^^^, just updated to Linux
5.11.0-37-generic today, and it's third monitor is still not working on
there, only version working is Linux 5.11.0-25-generic

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-10-16 Thread Theunis Cilliers
I'm a bit of a Linux n00b so I don't know what type of troubleshooting
detail/information would be of any use, but I'm experiencing the same
thing. Been struggling for a few weeks/months and tonight decided to try
and use Advanced Mode at the boot up screen and chose to launch with an
older Kernel, and my VGA-connected screen came to life again.

So specifically this kernel version works perfect:
Linux 5.11.0-25-generic

And for this one, there's absolutely no way to get my third monitor, connected 
via VGA port, to work:
Linux 5.11.0-31-generic

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-09-10 Thread Peter Nicolai Mathias Hansteen
The system now runs 5.11.0-34-generic which still has the bug.

Looking in my /boot the oldest I have is 5.11.0-31-generic which
introduced the bug as far as I can tell (thanks apt autoremove). I do
however update whenever the thing prompts me to so I would venture a
guess that whatever preceded 5.11.0-31 worked.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-09-09 Thread Kai-Heng Feng
What was the last working kernel version?

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-09-09 Thread Peter Nicolai Mathias Hansteen
I would urge you to reconsider the importance of this bug.

This change broke a working setup, with no apparent user-visible
workaround available.

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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[Bug 1942427] Re: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915

2021-09-02 Thread Daniel van Vugt
** Summary changed:

- Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915
+ [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of 
external displays with i915

** Package changed: xorg (Ubuntu) => linux (Ubuntu)

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Title:
  [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks
  use of external displays with i915

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